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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	double x, y;  
  6. 	scanf (" %lf%lf ", &x, &y); // чтение из стандартного потока ввода.
  7. 	if (( x*x + y*y <= 1) && (y<=x/2)) {	//утверждение
  8. 		printf ("u=-3");		//истина
  9. 	}
  10. 	else {
  11. 		printf ("u = %2.2lf", y*y); 	//ложь
  12. 	}
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 3300KB
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stdin
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0.5 -0.5
0.6 0.8
0 -1
-1 0
1 0
0 1
0 0
stdout
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u=-3
https://ideone.com/N3UoQ7
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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